chaptersbase

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Author : Nick Wellnhofer
Date : 2017-05-21 22:08:50
Hash : c2f4da1a
Message : Improve XPath predicate and filter evaluation Consolidate code paths evaluating XPath predicates and filters. Don't push context node on stack when evaluating predicates. I have no idea why this was done. It seems completely useless and trying to pop the context node from a corrupted stack has already caused security issues. Filter nodesets in-place and don't create node sets with NULL gaps which allows to simplify merging a great deal. Simply move matched nodes backward and create a compact node set. Merge xmlXPathCompOpEvalPositionalPredicate into xmlXPathCompOpEvalPredicate.

test/XPath/tests/chaptersbase

/child::EXAMPLE
/child::*
/child::EXAMPLE/child::head
/child::EXAMPLE/child::*
/child::EXAMPLE/child::head/child::title
/child::EXAMPLE/child::head/child::title/child::text()
/child::EXAMPLE/child::head/node()
/descendant::title
/descendant::p/ancestor::chapter
//p[1]
//p[0 div 0]
//p[100000000000000000000]
//p[-100000000000000000000]
//chapter[true()][position() mod 2 = 1][true()][2]
//chapter[true()][2][true()]
//node()[false()]
(//node())[false()]

kc3-lang/libxml2/test/XPath/tests/chaptersbase

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